Due to an error in the original version of Figure 1A, a phase contrast image of human induced pluripotent stem cell-derived cardiomyocyte cluster was presented as H9 human embryonic stem cell-derived cardiomyocyte cluster. The authors apologize for this error and are supplying a corrected Figure 1A that displays H9 human embryonic stem cell-derived cardiomyocytes.
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Footnotes
Competing Interests: No competing interests declared.